phy: tegra: xusb: Add Tegra210 lane_iddq operation
As per Tegra210 TRM, before changing lane assignments, driver should
keep lanes in IDDQ and sleep state; after changing lane assignments,
driver should bring lanes out of IDDQ.
This commit implements the required operations.
Signed-off-by: JC Kuo <jckuo@nvidia.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/phy/tegra/xusb.h b/drivers/phy/tegra/xusb.h
index ccb5dc9..e789d5f 100644
--- a/drivers/phy/tegra/xusb.h
+++ b/drivers/phy/tegra/xusb.h
@@ -35,6 +35,10 @@ struct tegra_xusb_lane_soc {
const char * const *funcs;
unsigned int num_funcs;
+
+ struct {
+ unsigned int misc_ctl2;
+ } regs;
};
struct tegra_xusb_lane {
@@ -126,6 +130,8 @@ struct tegra_xusb_lane_ops {
struct device_node *np,
unsigned int index);
void (*remove)(struct tegra_xusb_lane *lane);
+ void (*iddq_enable)(struct tegra_xusb_lane *lane);
+ void (*iddq_disable)(struct tegra_xusb_lane *lane);
};
bool tegra_xusb_lane_check(struct tegra_xusb_lane *lane, const char *function);
